In reply to AlastairB:
Legal and General imposed a limit of not climbing routes harder than S 4a to keep premiums the same. Baffled, I queried this with the 'dangerous sports expert'. This includes bouldering problems and mountain routes. When I pointed out that K2 would not be more than S 4a, this was 'fine'. Effectively they are excluding climbing from the policy. Althought the two policies I have are large (£1.25m), apparently this would be the same for smaller policies (I spied a loophole).